[JUX2] [19] Add view-dependant icons to title bar  

- Added view/component dependant icons to all core views
- Created JLayout for the title
- Created template override for Hathor to output old style

![4x7g1](https://f.cloud.github.com/assets/744259/1257887/5fcd655c-2bb0-11e3-8e76-3947163ac24e.png)

*PS: This PR is built on top of https://github.com/joomla/joomla-cms/pull/2117
So that needs to get merged first!*